Reply to thread

Message: <blockquote data-quote="jennypenny" data-source="post: 648805" data-attributes="member: 28359">our BMWs use synthetic oils. it should last beyong 10,000kms. theoretically, it should last 30,000 km without much fuss.hence, why BMW around the world, recommends 20,000 to 30,000km service cycle.however, if you would like peace of mind, service every 15,000km to 20,000km (you are still well within 30k lifespan).servicing more often will be better but it wouldnt be cost effective. (hey, if you have unlimited resource, why not?)engine noise being coarser after 10k is just "placebo" effect.my brother works for Petronas Lubricants department, he says that Synthetics can last beyond 50k for normal driving. so unless you gun your car daily, 15k to 20k service cycle is perfectly fine.</blockquote>